diff --git a/firmware/docs/getting-started_ja.md b/firmware/docs/getting-started_ja.md
index a11b3ae..6d0e427 100644
--- a/firmware/docs/getting-started_ja.md
+++ b/firmware/docs/getting-started_ja.md
@@ -108,6 +108,45 @@ xs-dev environment info:
   ESP32 IDF Directory        /home/ubuntu/.local/share/esp32/esp-idf
 ```
 
+`cat $MODDABLE/build/devices/esp32/targets/m5stack_cores3/sdkconfig/sdkconfig.defaults`コマンドでM5Stack CoreS3のPARAMの設定を確認できます。
+設定が完了していれば、`CONFIG_SPIRAM=n`という記述を確認できます。
+
+```console
+$ cat $MODDABLE/build/devices/esp32/targets/m5stack_cores3/sdkconfig/sdkconfig.defaults
+
+CONFIG_ESP_CONSOLE_UART_DEFAULT=y
+CONFIG_ESP_CONSOLE_UART=y
+CONFIG_CONSOLE_UART_NUM=0
+CONFIG_ESP_CONSOLE_UART_BAUDRATE=115200
+
+CONFIG_ESP_SYSTEM_PANIC_GDBSTUB=n
+CONFIG_ESP_COREDUMP_ENABLE_TO_UART=n
+CONFIG_ESP_COREDUMP_ENABLE=n
+
+# CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
+# CONFIG_ESPTOOLPY_FLASHSIZE="4MB"
+CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
+CONFIG_ESPTOOLPY_FLASHSIZE="16MB"
+
+#CONFIG_ESPTOOLPY_FLASHMODE_QIO=y
+#CONFIG_FLASHMODE_QIO=y
+
+CONFIG_ESPTOOLPY_FLASHMODE_DIO=y
+
+CONFIG_SPIRAM=n
+CONFIG_SPIRAM_MODE_OCT=n
+CONFIG_SPIRAM_MODE_QUAD=y
+CONFIG_SPIRAM_SPEED_120M=n
+CONFIG_SPIRAM_SPEED_80M=n
+CONFIG_SPIRAM_SPEED_40M=y
+CONFIG_SPIRAM_TYPE_AUTO=y
+CONFIG_SPIRAM_IGNORE_NOTFOUND=y
+CONFIG_SPIRAM_USE_MALLOC=y
+# CONFIG_SPIRAM_MEMTEST=y
+
+# CONFIG_BOOTLOADER_LOG_LEVEL_VERBOSE=y
+```
+
 ## 次のステップ
 
 - [プログラムのビルドと書き込み](./flashing-firmware_ja.md)